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Low temperature coagulant agent for chlorine-oxygen-magnesium cement and manufacturing technique

A technology for magnesium oxychloride cement and a production process, which is applied in the field of low temperature setting accelerators for magnesium oxychloride cement, can solve problems such as reduced production efficiency, prolonged product production time, reduced mold turnover rate, etc., and achieves stable performance, easy operation and cost. high effect

Inactive Publication Date: 2008-05-28
龚兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the hydration rate of magnesium oxychloride cement slows down at low temperature, the time for producing products is prolonged, the turnover rate of molds is reduced, and the production efficiency is also reduced. This has a great impact on manufacturers in the three north regions of my country. After investigation and investigation, At present, there is no additive in my country that can increase the hydration rate of magnesium oxychloride cement and shorten the setting time of magnesium oxychloride cement at low temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Magnesium oxychloride cement low-temperature coagulant and its production process, its composition includes: Ca(OH) 2 , also include silicon powder, naphthalenesulfonic acid formaldehyde condensate in the described magnesium oxychloride cement low-temperature coagulant, and its weight and number ratio is Ca(OH) 2 1.2, silicon powder 0.08, naphthalenesulfonic acid formaldehyde condensate 0.12, its production process is: get Ca(OH) by the weight and number ratio described above 2 1.2, silicon powder 0.08, naphthalenesulfonic acid formaldehyde condensate 0.12, the Ca(OH) 2 , naphthalenesulfonic acid formaldehyde condensate, and silicon powder are mixed to form a low-temperature coagulant for magnesium oxychloride cement, and then the low-temperature coagulant for magnesium oxychloride cement 0.19, MgCl 2 Solution 1.2, MgO powder 0.64, and rice husk powder 0.12 are mixed and stirred evenly to make a finished product. The setting time of the magnesium oxychloride cement u...

Embodiment 2

[0019] Magnesium oxychloride cement low-temperature coagulant and its production process, its composition includes: Ca(OH) 2 , also include silicon powder, naphthalenesulfonic acid formaldehyde condensate in the described magnesium oxychloride cement low-temperature coagulant, and its weight and number ratio is Ca(OH) 2 1.2, silicon powder 0.12, naphthalenesulfonic acid formaldehyde condensate 0.14, its production process is: get Ca(OH) by the weight and number ratio mentioned above 2 1.2, silicon powder 0.12, naphthalenesulfonic acid formaldehyde condensate 0.14, the Ca(OH) 2 , naphthalenesulfonic acid formaldehyde condensate, and silicon powder are mixed to form a low-temperature coagulant for magnesium oxychloride cement, and then the low-temperature coagulant for magnesium oxychloride cement 0.21, MgCl 2 Solution 1.2, MgO powder 0.68, and rice husk powder 0.16 are mixed and stirred evenly to make a finished product. The setting time of the magnesium oxychloride cement u...

Embodiment 3

[0021] Magnesium oxychloride cement low-temperature coagulant and its production process, its composition includes: Ca(OH) 2 , also include silicon powder, naphthalenesulfonic acid formaldehyde condensate in the described magnesium oxychloride cement low-temperature coagulant, and its weight and number ratio is Ca(OH) 2 1.2, silicon powder 0.10, naphthalenesulfonic acid formaldehyde condensate 0.13, its production process is: get Ca(OH) by the weight and number ratio mentioned above 2 1.2, silicon powder 0.10, naphthalenesulfonic acid formaldehyde condensate 0.13, the Ca(OH) 2 , naphthalenesulfonic acid formaldehyde condensate, and silicon powder are mixed to form a low-temperature coagulant for magnesium oxychloride cement, and then the low-temperature coagulant for magnesium oxychloride cement 0.20, MgCl 2 Solution 1.2, MgO powder 0.66, and rice husk powder 0.14 are mixed and stirred evenly to make a finished product. The setting time of the magnesium oxychloride cement un...

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Abstract

A low-temp coagulant for Cl-O-Mg cement product contains Ca(OH)2 (1.2 Wt portions), Si powder (0.08-0.12) or zeolite powder (0.16-0.22) and formal naphthalene sulfonate (0.12-0.14).

Description

Technical field: [0001] The invention relates to a low-temperature coagulation accelerator for magnesium oxychloride cement and a production process thereof. Background technique: [0002] Magnesium oxychloride cement products are widely used in my country, and the raw material resources for producing magnesium oxychloride cement products are abundant. The magnesium oxide used in magnesium oxychloride cement is required to be activated magnesium oxide that can react with magnesium chloride solution. The raw material magnesite or dolomite is in my country. There are abundant reserves, and the grade is high, the impurity is few, the quality is easy to control. The outstanding advantages of magnesium oxychloride cement products are small bulk density, high strength, compressive strength can reach more than 100Mpa, high hardness, good wear resistance, small thermal conductivity, sound insulation, heat insulation, fast condensation, easy molding, and metal , Non-metallic binder h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B22/06C04B24/16C04B9/02
Inventor 龚兵
Owner 龚兵
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